Angela would be a great character to focus on. She was such a strong and independent character. In a reunion, we could see how she has balanced her career and personal life. Maybe she has traveled the world and has amazing stories to share, and how her relationship with Shawn has either deepened or changed in unexpected ways.
Captain America's protege would be an interesting choice. He has big shoes to fill, and seeing how he has developed in the absence of Captain America would be engaging. He might struggle with living up to the legacy, but at the same time, he could bring his own unique style and leadership to the group during the reunion. His relationships with the other young Avengers, especially those who knew Captain America well, could be a major part of the story.
Cory Matthews is definitely a popular choice. He's the central character in 'Boy Meets World' and his journey from a young boy to a man is very interesting. In fanfiction, you can explore more of his later life and how he imparts his wisdom to the new generation in 'Girl Meets World'.
I think Nightwing would be the most interesting. He has this unique blend of skills and a different background compared to the more well - known Justice League members. His time as Robin and then his growth into Nightwing gives him a lot of depth to explore in the story.
John from Unordinary could also be a great focus. If he meets the characters from Attack on Titan, he might be both intrigued and a bit scared. His ability to copy powers could be really useful against the Titans, and his own internal struggle with power could be contrasted with the characters from Attack on Titan who have their own power - related issues.
I think Santana from Glee and Alex from Supergirl would be great to focus on. Santana is sassy and confident, and Alex is strong and brave. They could get into some really fun arguments or team up to take on a common enemy. Also, Quinn from Glee and Lena Luthor from Supergirl could be an interesting pair. Quinn's transformation throughout Glee and Lena's complex character in Supergirl would create a lot of drama and potential for great storylines when they interact.
I think CeCe from 'shake it up' would be really interesting. She has such a bubbly and determined personality. In the fanfiction, she could be the one who tries to bridge the gap between the two groups, using her charm and dance skills.
Sonic himself would be very interesting. Since there are two different versions of Sonic in Sonic Underground and Sonic X, it would be cool to see how they interact. They could have a friendly competition about who is faster or better at saving the day. It would also be interesting to see how Sonic from Sonic X reacts to Sonic Underground's family dynamic, as Sonic in Sonic X is more used to his friendship with Tails and Knuckles.
It could be Robin. Since he has a connection to Batman like Red Hood, he might have a unique perspective. He could be the one trying to understand Red Hood's motives and trying to bridge the gap between Red Hood and the rest of Young Justice. Also, his own growth as a hero could be further developed through this encounter.
I think Harry Potter himself would be very interesting. He has a whole new world to discover in the world of Shadow the Hedgehog. His reactions to the high - speed action, different technology, and the new types of enemies would be really cool to explore. Also, his magic would be a unique element in that world.
Sebastian would be really interesting. He's a demon, so seeing him interact with modern - day society would be full of comical and also rather dark moments. He'd be confused by some things like traffic laws but would quickly figure out how to use his powers to his advantage in a world full of new challenges.